Tīpoka ki ngā ihirangi matua
Aromātai
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Kimi Pārōnaki e ai ki f
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

\frac{f^{4}\pi }{4}
Tuhia te f^{4}\times \frac{\pi }{4} hei hautanga kotahi.